
Feature extraction to extract a set of feature maps from the input sonar images.

Performing SLIC [1]} on the extracted features to generate superpixel features by Eq (REF ).

Unsupervise cluster all the superpixels and provide each superpixel a cluster assignment.

Pixels inside a superpixel are assigned the same cluster by Eq (REF ) to get pixel-level co-segmentation.

